Insights from compassionate use of tocilizumab for COVID‐19 to inform appropriate design of randomised controlled trials. Issue 3 (14th July 2020) - Baker, Emma H.; Patel, Kamal; Ball, Jonathan; Edwards, Sarah; Harrison, Thomas S.; Kaul, Arvind; Koh, Mickey; Krishna, Sanjeev; Leaver, Susannah; Kumar, Vinodh; Forton, Daniel M.